Hello everybody, I´m working on a data service that writes some data to an excel file and it works fine when I try it on the DSS (Data Service Server). Now I am invoking the service from the ESB and I´m having some issues:
>From the ESB I am invoking the excel service inside an iterate mediator, all those calls are SUCCESS because after invoking the service, I´m logging the response and I can see it was SUCCES, also I can see the SUCCESS event on the soap tracer inside the DSS, it seems like everything it´s ok, but, when I see the excel file, only one row was created (each service execution creates a row) and when I invoke again the proxy service in the ESB, I get this error in the DSS Nested Exception:- DS Fault Message: Error in opening DBMS connection. DS Code: UNKNOWN_ERROR Nested Exception:- java.sql.SQLException: Error occurred while initializing the EXCEL datasource at org.wso2.carbon.dataservices.core.description.query.SQLQuery.processPreNormalQuery(SQLQuery.java:832) at org.wso2.carbon.dataservices.core.description.query.SQLQuery.runPreQuery(SQLQuery.java:2301) at org.wso2.carbon.dataservices.core.description.query.Query.execute(Query.java:275) at org.wso2.carbon.dataservices.core.engine.CallQuery.executeElement(CallQuery.java:188) at org.wso2.carbon.dataservices.core.engine.OutputElement.execute(OutputElement.java:89) at org.wso2.carbon.dataservices.core.description.operation.Operation.execute(Operation.java:61) at org.wso2.carbon.dataservices.core.engine.DataService.invoke(DataService.java:474) at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:96) ... 46 more Caused by: DS Fault Message: Error in opening DBMS connection. DS Code: UNKNOWN_ERROR Nested Exception:- java.sql.SQLException: Error occurred while initializing the EXCEL datasource at org.wso2.carbon.dataservices.core.description.query.SQLQuery.createConnection(SQLQuery.java:752) at org.wso2.carbon.dataservices.core.description.query.SQLQuery.processPreNormalQuery(SQLQuery.java:805) ... 53 more Caused by: java.sql.SQLException: Error occurred while initializing the EXCEL datasource at org.wso2.carbon.dataservices.sql.driver.TExcelConnection.createConnectionToExcelDocument(TExcelConnection.java:56) at org.wso2.carbon.dataservices.sql.driver.TExcelConnection.<init>(TExcelConnection.java:36) at org.wso2.carbon.dataservices.sql.driver.TConnectionFactory.createConnection(TConnectionFactory.java:32) at org.wso2.carbon.dataservices.sql.driver.TDriver.connect(TDriver.java:50) at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278) at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182) at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701) at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635) at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188) at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128) at org.wso2.carbon.dataservices.core.description.config.SQLConfig.createConnection(SQLConfig.java:188) at org.wso2.carbon.dataservices.core.description.query.SQLQuery.createConnection(SQLQuery.java:728) ... 54 more Caused by: java.io.IOException: Unable to read entire header; 0 bytes read; expected 512 bytes at org.apache.poi.poifs.storage.HeaderBlock.alertShortRead(HeaderBlock.java:226) at org.apache.poi.poifs.storage.HeaderBlock.readFirst512(HeaderBlock.java:207) at org.apache.poi.poifs.storage.HeaderBlock.<init>(HeaderBlock.java:104) at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java:138) at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:322) at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:303) at org.wso2.carbon.dataservices.sql.driver.TExcelConnection.createConnectionToExcelDocument(TExcelConnection.java:51) ... 65 more CAN ANYBODY HELP ME? thanks and best regards,
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